Statistical Calculations 131
Student's T Probability Lower Tail
Figure 11
To calculate the area under the Student's T Distribution curve, first enter the degrees of
freedom, followed by the
t
-value. It is a two-number function, so it may be entered as either
an in-line function, or by using
Æ
.
Example:
What is the lower tail probability associated with a Student’s T distribution with 8 degrees of
freedom (df
1
) with a
t
-value of
-
1.86?
Table 12-21 Example of Student’s t (lower tail)
Keys
Display
Description
g]IJ7gSy4
.0499653
Calculates the lower tail
probability.
or, using
Æ
:
gÆJ7gSy]I
Returns the same results.
Figure 12
Figure 13
Summary of Contents for 10bII+
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Page 3: ...iii HP 10bII Financial Calculator ...
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Page 144: ...Statistical Calculations 136 ...
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